bloodmoon

It hasn’t happened in 32 years, and won’t for another 18 years: Sunday evening, a total lunar eclipse will coincide with a “Supermoon.”A lunar eclipse occurs when the Earth is between the full moon and the sun. The Earth’s shadow covers the moon, which often has a red color, hence the “blood” moon nickname.Although it’s completely in the shadow of Earth, a bit of reddish sunlight still reaches the moon.”That red light shining onto the moon is sunlight that has skimmed...